Description of single variables collected from Swedish Knee Arthroplasty Register
| Swedish Knee Arthroplasty Register | Before surgery | Follow-up 1 year | |
| Variable category | Variable | ||
|---|---|---|---|
| Diagnosis (at knee) | ICD-10 | x | |
| Laterality | x | ||
| Date | Date of surgery | x | |
| Type of surgery | Primary, revision, reoperation | x | |
| Total, partial, resurfacing knee replacement | x | ||
| Patient-reported measures | |||
| Musculoskeletal comorbidity | Charnley class* | x | x |
| Pain | Knee pain VAS | x | x |
| Health-related quality of life | EuroQol-5 dimensions | x | x |
| EuroQol VAS | x | x | |
| Satisfaction | Satisfaction with treatment | x | |
| Patient-reported knee function | Knee injury and Osteoarthritis Outcome Score | x | x |
*Charnley class: classifications of musculoskeletal impairment. Class A corresponds to unilateral knee disease; class B to bilateral knee disease and class C to multiple joint disease or some other condition that inhibits the patient’s ability to walk.
ICD-10, International Classification of Diseases, tenth revision; VAS, visual analogue scale.